Measurement of the relative prompt production rate of ?c2 and ?c1 in pp collisions at sqrt(s) = 7 TeV

Link:
Erscheinungsjahr:
2012
Medientyp:
Text
Schlagworte:
  • Physics
  • Physics
Beschreibung:
  • Ameasurement is presented of the relative prompt production rate of chi(c2) and chi(c1) with 4.6 fb(-1) of data collected by the CMS experiment at the LHC in pp collisions at root s = 7 TeV. The two states are measured via their radiative decays chi(c) -> J/psi + gamma, with the photon converting into an e(+)e(-) pair for J/psi rapidity \textbackslash{}y(J/psi)\textbackslash{} < 1.0 and photon transverse momentum p(T)(gamma) > 0.5 GeV/c. The measurement is given for six intervals of p(T)(J/psi) between 7 and 25 GeV/c. The results are compared to theoretical predictions.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/32a18392-4a2d-4fe2-95ca-295871a5620d